(Portland, OR) -- The District Attorney's Office is clearing two Portland Police officers of criminal charges after they shot and killed a man last month. The DA says Detective Charles Asheim and Officer Dustin Barth were justified in the shooting death of 57-year-old Erik Sherrer. Sherrer was wanted for allegedly pulling a gun on grocery store security officers. Police claim he refused to come out of his apartment. Chemical gas was used to force him out and he was armed with a handgun when shots were fired. Sherrer died at the scene.